We know that we don’t have permanent relationship with this world. We all acknowledge this truth and yet do not remember it. If we do not get attached we can experience an unspeakable joy this very moment.
We can remain without attachment in this world but not without detachment. When we are in deep sleep we are oblivious to our relationships in the waking world. The equanimity that prevails then is more that what we get by our associations in our waking state.
It is in our nature to sleep. In deep sleep we forget the waking world. We are strained if we spend even 24h continuously attached to worldly ties (attachment has been used purposefully). The replenishment that we get from worldly ties is not greater that what we get by sound sleep.
We are used to taking regular sleep from birth but we cultivate attachment while growing up. Attachment to toys, games, later money… in all these stages sleep remains dear. After marriage we develop attachment towards family. Some become monk. All enjoy sleep equally and renounce all worldly tags in that state be it monk-ship or a family. We make elaborate preparation for getting comfortable sleep. Mattress, pillow, fan, noiseless environment! We relish in a lot of worldly activity but when we get sleepy we want to put all of them aside.
There is a saint’s poem -- “बैरिन हो गई निन्दरिया” – sleep has become an enemy! Because her desire is to stay in a trance remembering the lord. We are willing to give up, nay, call sleep an unwelcome guest, when we find the one true, constant, eternal relation! The fabricated attachments in this world is transient and it is destined to be severed.
In Gita -- “कर्मणयेवाधिकारस्ते मा फलेषु कदाचन” – We have the rights to perform our duty not on the fruits thereof. And mind should not be inclined towards non-working either. With full attention, dexterity, we should do our duty. Why? Because the primary purpose of this human body is to be utilized in service not for sense indulgence. Human form is not merely its physical manifestation – it is the discrimination, Vivek! This supernatural power is bestowed on us to develop rightful detachment. By doing duty with discrimination we practice karma yoga and use it to our favor in developing detachment.
We must serve our family, our parents, this world, everyone – and yet stand aside! The peace that is there in identifying as the doer of such duty is less than the satisfaction and peace obtained by exercising discrimination to stay detached from such identification!
Reference: Hindi Magazine क्लयाण Year 87, volume 10. Article by Ramsukhdas ji titled “साधकों के प्रति” on page 15-18. The above article is a selectively edited much shorter translation of that article in English.

Sri kRShNa presents a simple technique (for living this philosophy this) - || mAm anusmara yudhyaca ||
सुमन्त शर्मणः (@sumanthbharatha), Oct 08 2013 on k.ekvastra.in