I think Sachin has for 15 long years borne the burden of India with the heavy bat he uses. He deserves a break & recover & probably come back with a lighter bat which will also help him as his age is advancing & eyesight will be deteriorating.
Anyway his break is essential for India to prove that they can win without him & if they can , then Sachin can take things little more lightly & play as he used to when he came as a 16year old kid - with gay abandon.