When I became a scuba diving instructor, I suddenly discovered that there is no much space for the farther development. On the other hand, I always was eager to discover freediving. I knew from my early years that I am good in it. Freediving, in contrary to technically oriented diving, actually offered the space for constant development.
My life philosophy, which is Zen, seemed to fit it perfectly. Zen practice helps me to be a better freediver, freediving helps me to go through life with ease and smile. This two fields just extend each other as Yin and Yang.