There is no 'how', there is only knowing, understanding,
accepting that one carries images in one's mind (which is not
real) of many things, 'good' , 'bad', ... one can simply
add on.
The experience of 'Nice'/'un-nice' does not matter.
If one is for eg, a teacher n after
lessons leaves the classroom and (with understanding) no
longer sees
oneself as a teacher: one has no image of teacher, one does
not accumulate image(s) and hence there is nothing to carry. One
participates or plays the role in ..... and one experiences it and simply
'let's go'.
A story:
One day a monk n his young student were going into
town. On their way, they approached a small river n saw a girl
walking back and forth looking very disturbed.
The monk asked the girl - 'what is the problem'?
She told him that she feared crossing the river.
The monk responded: 'I will carry you across the river.'
So the monk carried the girl on his back n walked across
the river stream. On reaching the opposite river bank, he put her
down and bidding farewell went his way with his student
tagging along.
Observing the whole thing, the young student was perturbed. He
thought, 'the monk taught us to keep a distance from a women'.
After a
few hours after they had left the girl n
were already in
town, the whole thing was still bothering the student in his
mind. Finally, the student could not stand it any longer and
brought it up to the monk.
Upon hearing this, the monk amusingly said: 'I had put down the
girl when we crossed the river. You must be very tired carrying her around
for the last few hours.'
Mind accumulates (images of ..) and the more, the bigger
the burden. The lesser the images the more freer one feels. The
ligther one feels the more one is moving towards the seat of one's
being. One feels alive!
One flows existentially - i.e. one partakes of life as it comes, no 'hangovers'of
the past, one is flowing with the river of life/living.
One's mind flows and it is in synchrony with one's heart (soul,
spirit or ....whatever one calls it). One is free of the past - the
images of eg, teacher, 'good', 'bad', .... is no longer there. One
is integrated
within oneself and no longer split within and most of all one is
anew, 'alive' and partaking of life in all its hues