Anyone good at riddles/puzzles?

[Pollock]

"Millions of numbers hailing
Like so many tiny stones
If the trail begins from 37
How far to the ground shall I go?"

What could this mean/be referring to?

another:

The beginning of my four parts stuck at the end
The middle two on their own can operate
Yet they are still a part of a larger system
The end is taken from the beginning to become full

 

[vshah]

the matrix

 

[nerp]

It's the first irregular prime, if that helps.

 

[Pollock]

Nobody? 🙁

 

[mjrpes3]

Irregular primes are infinite so the answer is the ground does not exist, Neo.

 

[IronWing]

555 ft.

 

[Pollock]

The first one dealt with the hailstone series. If you start at 37, it takes 21 steps to converge. 🙁


Here's another:

The beginning of my four parts stuck at the end
The middle two on their own can operate
Yet they are still a part of a larger system
The end is taken from the beginning to become full