For a jivanmukta - who has transcended the realm of MAyA, the snake of samsara may well be a jewel, that like the Lord Parameshwara he can wear around his neck. For anyone but that rarest of mahatmas, one has to be weary about samsara.
This was what was Bharata's mistake - in one fateful moment of indiscretion he allowed what was seemingly a minor lapse in his sadhana - and the downfall was both abrupt and brutal.
SImilarly too, for a seeker, until he is well-established in his realization, and in his jnananishtA, he is best-served only by complete abandoment of karma - of course this can happen only when he has developed enough maturity, and most importantly enough intensity in his desire to really want to be free. But if after that he continues to tempt fate as it were, and remain in the midst of the very samsara his still feeble mind hopes to transcend he is severely depleting his odds of freedom.
That is why the Vivekachudamani cautions-
309. Even though completely rooted out, this terrible egoism, if revolved in the mind even for a moment, returns to life and creates hundreds of mischiefs, like a cloud ushered in by the wind during the rainy season.
310. Overpowering this enemy, egoism, not a moment's respite should be given to it by thinking on the sense-objects. That is verily the cause of its coming back to life, like water to a citron tree that has almost dried up.
324. As sedge, even if removed, does not stay away for a moment, but covers the water again, so Maya or Nescience also covers even a wise man, if he is averse to meditation on the Self.
325. If the mind ever so slightly strays from the Ideal and becomes outgoing, then it goes down and down, just as a play-ball inadvertently dropped on the staircase bounds down from one step to another.
Furthermore a question is posed and an answer also provided -
How is the exclusion of the objective world possible for one who lives identified with the body, whose mind is attached to the perception of external objects, and who performs various acts for that end ? This exclusion should be carefully practised by sages who have renounced ALL kinds of DUTIES and ACTIONS AND OBJECTS, who are passionately devoted to the eternal Atman, and who wish to possess an undying bliss.