This entire Creation is one single thought ...

This entire Creation is one single thought in the mind of the Lord, created by Brahma, sustained by ViShNu and destroyed by Shiva. Each thought springs from the Self, the unmoving omnipresent Consciousness and is resorbed in it. This bodily existence is another long thought born of past desires. Desire is the root of manifestation. It is rajo guNa samudbhavah- born of rajas. How to enjoy with constant awareness? VitRShnA- without longing for that which was. So enjoy everything that which comes of its own accord but don't hanker for its permanence or sustenance. One can have this attitude only if one is truly devoid of desire. This does not mean one is devoid of enjoyment. After all bhoga apavargArtham dRShyam.

Just as action requires no doer, so too thought requires no thinker!

Just as action requires no doer, so too thought requires no thinker. Thought arises naturally as the svabhAva of Brahman through Shakti. As long as the 'I ' thought does not creep in, there is Bliss (cf story of Dama, Vyala and Kata in the Yoga VasiShTha). There the implication seems to be that repeated thought or performance of action without constant control leads to the 'I' thought. Without the notion of I there is no problem of praise or censure, and no expectation either. So it is liberating. There is simply 'natural ' action playing out prArabdha. The potter's wheel spinning before it comes to rest after all pots have been made. But ashubha vAsanAs should be eliminated by practice and shubha VAsanA allowed but they too die of their own accord in time. Sattva purified dies of itself.

Householder's life and cessation of thought which is Yoga

This one's purpose was to live as a householder. As RamaNa has said, certainly even getting a thought out is an effort after samAdhi but a householder has to continue actions. So Sri KRShNa's instructions in BG are more relevant- when thoughts arise and actions are performed see the world as Shivashakti; dRShTim jnAnamayIm kRtva pashyet brahmamayam jagat (Through the vision of wisdom perceive the world as Brahman).