what happens is without extra effort 水到渠成

“水到渠成”，汉语成语，字面意思是“水流到的地方自然形成一条水道（A canal is formed when water comes ）”。比喻条件成熟，事情自然会成功（When conditions are ripe, success will come；What happens is without extra effort）。

例句：

如果他们采取目的明确的行动，并拥有合适的技能和动力，身边还有一支给力的团队，那么成功就是水到渠成的事。

If they take purposeful action, and if they have the right skills and drive and the right team around them, success will follow.

给自己留出选择的余地，一切将会水到渠成。

Keep your options open and everything will fall into place.