tan maa kRthaaH shokam, upehi shaantiM,
maa bhuun mahimnaa tava Maara maanaH;
vishrambhituM na kSHamam a-dhruvaa shriish,
cale pade vismayam abhyupaiSHi.]]
So be not grieved but come to quiet.
Being great and famous, Mara,
is naught for your pride --
There are no grounds to be confident
in fickle political power.
You are puffed up with startle and bluster
on an unsteady base."
What does it mean "not to be grieved"? It might mean not to be unduly swayed by the Mara reflex, not to be governed by the Mara reflex, not to react blindly and emotionally, out of touch with one's reason, as a result of an aberrant Mara reflex. The Mara reflex, more conventionally know in scientific circles as the Moro reflex, exists to support us, to prevent us from curling up and dying, at the time of our strongest emotions, such as grief. But if this primitive reflex is not kept in check, if it is not inhibited, then it tends to cause our energy to be continually drawn away from the centre and up to the head, neck, and shoulders -- so that sensory information is not well integrated, and thoughts and feelings are not well grounded.
"To come to quiet," similarly, might have to do with inhibition of undue excitement in the nervous system resulting from unresolved antagonism between fear paralysis and the Moro reflex.
Patrick Olivelle's translation of the fourth line, "you are puffed up as your base is reeling," nicely describes the manner of use of a person suffering from a poorly integrated Moro reflex.
maa: [prohibitive particle] do not
kRthaa: made, be done
upe = approach, come to
shaanti: calm, quiet
maa: do not
bhuu: become, be
mahimnaa = instrumental case of mahiman: greatness
tava = genitive of tvam: you
kSHama: patient, suitable
a-dhruvaa: inconstant, fickle
shriiSHu = locative plural case of shrii: splendour; prosperity, fortune, wealth; high position, glory, majesty, royal dignity, sovereignty
cala: moving, trembling, tottering, unsteady, wobbling
pade = locative case of pada: footing, position, base
vismaya: surprise, startle, pride, arrogance
abhyupe: get into a state
Therefore be not grieved, calm yourself, Mara, and be not over-proud of your might. Inconstant fortune should not be relied on; you display arrogance, when your very position is tottering."
So, do not be sad, calm yourself, Mara,
do not become proud because of your might;
Sovereign power is fickle, don't trust in it;
you are puffed up as your base is reeling."