Who's the luckiest? The seed, I guess. If it didn't fall out of the bag, it would have been sold. It got lucky again: the horse pushed it into the ground. If the rain was too heavy, it could have gotten washed away. It germinated. It became a tree. Life could have happened, but it survived. It didn't get split with a chainsaw.
Well, in life, good things often happen. Some, beyond our control.
Thanks for sharing your view @jeffways and I have to agree the seed was the luckiest, yes good things do happen often thanks for the supprt.