My walk along the shore..

I walk along the sea shore,
Keep picking the pebbles,
Some heavy,some light,
Some rough,some smooth,
Some pretty,some ugly,
Some make me happy,some make me sad,
But I saunter along the shore carrying them all,
Im tired,I need to leave some pebbles back,
I cant carry them all,
If I carry them all,it is going to be the end of my walk..
Hopefully I leave the ones that are an onus on me,
So that I walk further,
Along the sea shore..
Picking more pebbles..Some heavy...some light...