riddle - The sands of life are running out

The one I obey, my dear commander
Keep on running I will not slander
For I know you will follow my lead
Call me in if you are in need

If one commands the other will follow

That's the deal, one has to swallow
Either way, I rely on you
We kiss goodnight and start anew

Mighty Dictator of all places
followed by all human races
Watch over all the new born lives
earn the fruit of fertile strifes

Endless love, you never disclaim
nor would you repel and never blame
Unbribable Protector, punish me

and I will follow tacitly

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This is an easy riddle. For all the others:

Every verse contains the same solution. The whole riddle is metaphorically describing one solution.

Answer

After reading this I am under the impression that this has to be the answer.

Time

The one I obey, my dear commander Keep on running I will not slander For I know you will follow my lead Call me in if you are in need

We all know that we humans can command time, which simply means to use the time wisely (or simply changing the time on a watch). As we carry on with our daily activities, time follows us regardless whether we use it wisely or not, which then explains why the time will not 'slander' as we 'follow (its) lead'(and we will not slander when time is running). And of course, when we are in need of time, we can call him in, which just means that we would grasp time more efficiently and thus, have 'more time'(plus, using the watch again: it will tell/call us in us when batteries are empty).

If one commands the other will follow That's the deal, one has to swallow Either way, I rely on you We kiss goodnight and start anew

We both can command each other. When we command time, we are using it wisely whereas when time commands us, we will follow it as well. That's the case as one has to swallow, and swallow itself does not mean the physical act of swallowing, it could also mean 'put up with or meekly accept something', which in this case, the one which is commanding. When the clock hits twelve, a new day starts, hence 'we kiss goodnight and start anew'.

Mighty Dictator of all places followed by all human races Watch over all the new born lives earn the fruit of fertile strifes

Time is indeed the mighty dictator of all places, and we all humans follow it. Time watches over new born lives as when time passes, the newborns gradually age to become an adult, which then gives the metaphorical meaning that time is 'watching over' them. In the case of the fruit of fertile strife, it would mean that the humans themselves are displeased and hurt because of an argument, and to have the fruit of the fertile strife would be the solution to the argument, something that can dissipate the hurt between both of them, and as we have all heard before, 'Time heals all wounds.'
Double meaning of races!

Endless love, you never disclaim nor would you repel and never blame Unbribable Protector, punish me and I will follow tacitly

We all know that time is unbiased towards anyone, and that it will still pass regardless of situation, thus explaining why it would never disclaim, repel and blame. We all know that time can never be bought no matter how much money you have, hence giving it the title, Unbribable Protector. When time 'punishes us', it means that we have not used it wisely and we realise the fact that we have wasted precious time, something that can not be bought by money and we learn the importance of time. After being punished, we would learn to appreciate and use time efficiently, and hence 'follow tacitly'.

Title Interpretation

The sands could mean hourglasses itself as hourglasses use sand to embody the meaning of time. And when turned upside down and there is no more time left, hence 'The sands of life are running out'.