There are innumerable times a day that you can have triggered a sense of isolation–a feeling of being separated from your true Self. It may be a pain in your body, another day that you must go to work, stress of financial burdens, loneliness, anger about how life is putting demands on you, fear that you will not be successful; so many ways both little and small. Each of us live private lives in our own mind and body, and at times this existence can be termed hell, and other times it is a quiet desperation of unhappiness.
Life can just as easily take a sunny turn, some happy thought, news, or a favorite song comes to mind. These alternating moods of happy and sad, security and fear, accomplishment and failure are the changing tides of everyday life, and moving back and forth on a continuum of highs and lows is reality for the vast majority of humanity. However, as an aspirant upon the path you aim for something quite different; you seek to be established in a state of mind proof against those never ending dual forces of attraction and repulsion that compete for your attention.
Krishna tells us the way to this freedom in God in the Gita:
Abandoning egotism, force, arrogance
desire, wrath and possessions;
selfless and peaceful,
one is fit to be one with God.
At one with God, of serene self,
neither grieving nor desiring,
regarding all beings alike,
one attains supreme devotion to Me.
By devotion one knows Me in truth,
what and who I am;
then having known Me in truth,
one enters into Me at once.
Performing all actions,
taking refuge in Me;
by My grace one reaches
the eternal indestructible abode.
Renouncing mentally all actions to Me,
regarding Me as the supreme,
resorting to the Yoga of discrimination,
have your thought always on Me.
Thinking of Me,
you will transcend all difficulties by My grace,
but if from egotism, you will not listen,
then you will perish. (Gita Chapter 18)
There is a lot said in these few verses, but one may draw progressive lessons from them. Taking the focus of your mind from those things that separate you from your oneness with God, you are then ignited with love for Him. Through that love you experience His presence, and He enters into you and you into Him. Doing all actions as service to God, feeling that God is all in all, you destroy all thoughts that represent separation and keep your mind on Him continually. You are then lifted up beyond the dual forces of creation and merge into oneness (yoga union) with God. If you ignore these teachings you will sink back into the old ego-self and die to your eternal Self; your spiritual journey all undone.
Discriminate between what uplifts you, purifies you, brings you closer to God, and what separates you from oneness with Him; serve God in all you do and in whom all you meet; love God more than the things of this world; and deeply meditate upon the supreme Being, your true Self, and you will free yourself from the thralldom of suffering created through the ignorance of not knowing your eternal God-self. It is a tremendous promise, but one that has been backed up by countless saints and realized masters down through all time. One such confirmation comes from I John 4:26:
We have known and believed
the love that God has for us.
God is love,
and whoever dwells in love,
dwells in God, and God in them.
Another comes from Paul in Romans 6:22-3:
But having become free from sin
and servants of God,
you have your fruit of holiness,
and in the end, everlasting life.
The gift of God is eternal life
Through Jesus Christ our Lord.
The promise has been made, it has been verified by realized masters through the ages, now it is your time on the field of endeavor to fulfill that promise.