riddle - I'm the sea and the sun

Let us begin at the beginning
With all my mates and endless spinning
I'm not so hot and not so cold
I'm the sea and the sun, and quite as old

When shove comes to push
In your hand, I'm worth more than a bush

Day in, day out, hidden talents
Up and down, I keep the balance

I give birth to the flow
Downhill my children go
Through me you can see clearly
Now name me, riddler, dearly

Answer

The answer is

spring

Great thanks to jafe and Brandon_J

Let us begin at the beginning

spring --> beginning of the year

With all my mates and endless spinning

other seasons, rotating every year

I'm not so hot and not so cold

spring is a season where the temperature is moderate

I'm the sea and the sun, and quite as old

nice one! sea+sun sounds like season, where spring is one of them

When shove comes to push

when force is applied

In your hand, I'm worth more than a bush Day in, day out, hidden talents Up and down, I keep the balance

spring balance

I give birth to the flow

spring as in water flow

Downhill my children go

a stream of water usually flows downhill

Through me you can see clearly

we can see through water clearly

Now name me, riddler, dearly

spring

Why posting this riddle in this time of the year?

Spring Equinox?