Ar y llethrau gwyrddion eang o'r Beacons Brycheiniog, roedd Gwyn yn rhedeg yn erbyn y gwynt.

On the wide green slopes of the Beacons Brycheiniog, Gwyn was running against the wind.

Roedd yr haul yn ffilmio'r tir gyda'i gynhesrwydd, ac roedd yr aer yn llawn aroglau'r haf.

The sun was warming the land with its warmth, and the air was filled with the scents of summer.

‘Roedd Gwyn yn meddwl am y marathon sydd ar ddod.

Gwyn was thinking about the upcoming marathon.

Ei nod oedd torri ei record ei hun, ond roedd hefyd rhaid iddo wynebu'r her o roi amser a gofal i'w deulu.

His goal was to break his own record, but he also had to face the challenge of giving time and care to his family.

Roedd Megan, ei wraig, a Dylan, ei fab ifanc, yn dod i’w meddwl yn aml.

Megan, his wife, and Dylan, his young son, often came to his mind.

Roedd Dylan yn aml yn edrych ymlaen at ddiwrnodau haf arbennig â’i dad.

Dylan often looked forward to special summer days with his dad.

Ond roedd calonnau’r teulu’n gystuddiedig, cystal â phla gyda’r amserlen hyfforddi annhegwch Gwyn.

But the hearts of the family were distressed, as troubled as a plague with Gwyn's unfair training schedule.

Bob tro roedd Gwyn yn dod adref, roedd Megan yn cael y siom i weld fod ei wres ei hun ar goll.

Every time Gwyn came home, Megan would be disappointed to find her own warmth missing.

Un dydd Sadwrn heulog, roedd Gwyn yn paratoi ar gyfer rhediad hir ers tro.

One sunny Saturday, Gwyn was preparing for a long overdue run.

Yna, clywodd Dylan, "Dad!

Then, he heard Dylan, "Dad!

Bydd fy match pêl-droed heddiw!

My soccer match is today!"

" Roedd y cyhoeddiad yn stopio Gwyn yn ei olion.

The announcement stopped Gwyn in his tracks.

Dyna ei argyfwng.

That was his dilemma.

A ddylai fynd i'r match, neu a ddylai ymrwymo i’w hyfforddiant hollbwysig?

Should he go to the match, or should he commit to his crucial training?

Roedd Gwyn mewn poen meddwl.

Gwyn was in mental anguish.

Trodd ei feddwl dros y dyddiau hir y treuliodd rhwng rhediadau a theulu.

His mind wandered over the long days he spent between runs and family.

Yna, cymerodd benderfyniad.

Then, he made a decision.

Gofynnodd Megan, "Gwyn, beth ydych chi am ei wneud?

Megan asked, "Gwyn, what do you want to do?"

" Atebodd Gwyn gyda phahewiaeth tawel, "Rhaid i mi fynychu’r match.

Gwyn replied with quiet determination, "I must attend the match."

"Pan gwelodd Gwyn lawenydd Dylan wrth iddo ymarfer ar y cae, dydd Sadwrn, teimlodd y manteision i’w benderfyniad.

When Gwyn saw Dylan's joy as he practiced on the field on that Saturday, he felt the benefits of his decision.

Roedd y teulu yn y cae yn ymddangos fel yr un tîm pwysicaf.

The family on the field seemed like the most important team.

Roedd gweld Dylan yn sgorio gol wrth roi ei holl galon i'r gêm yn ei atgoffa fod gydbwysedd hollbwysig.

Watching Dylan score a goal while putting his whole heart into the game reminded him that balance is crucial.

Ar ddiwrnod y marathon, safai Gwyn ar y llinell gychwyn.

On the day of the marathon, Gwyn stood at the starting line.

Wrth gadw allan, roedd Megan a Dylan yn gweiddi “Dal ymlaen, Tad!

Cheering him on, Megan and Dylan shouted, "Keep going, Dad!"

” Er nad oedd Gwyn wedi torri ei record personol, fe orffennodd gyda deimlad o gyflawniad go iawn.

Although Gwyn did not break his personal record, he finished with a real sense of accomplishment.

Hwyrach nad oedd e’r mwyaf cyflym, ond roedd seren Dylan yn disgleirio’n glir ar ddiwedd y llwybr.

Perhaps he wasn't the fastest, but Dylan's star shone brightly at the end of the path.

Fe ddysgodd Gwyn gwerth y cydbwysedd a blaenoriaethu ei deulu.

Gwyn learned the value of balance and prioritizing his family.

Deallodd nad oedd llwyddiant yn ymwneud yn unig â’i gyflawniadau personol, ond hefyd am brofiadau a rannwyd gyda'r rhai a garai.

He understood that success wasn't solely about his personal achievements, but also about shared experiences with those he loved.

Roedd y llawenydd yn y Beacons yn gloywi fel yr haul, yn clymu eu teulu’n fwy agos nag erioed.

The joy in the Beacons gleamed like the sun, binding their family closer than ever.