Jumping to Beginning/End of (Code) Block

Many times, we want to go to beginning or end of the code block like function, condition. or loop statement. This is required either
to see proper indentation, or
to see function declaration, etc, etc.

And we do this generally by using arrow keys, which is very time consuming and repetitive. VIM provides this facility to go to beginning or end of code block.

[m go to start of the block
]m go to end of the block