Lankavatara Sutra, Chapter 2, Section XVI

Again, using this translation.

Is this a "Cool State^TM" or what?

Further again, Mahāmati, in the life of the Śrāvaka-vehicle ["Hearers-vehicle"], there are two aspects to be distinguished, namely, the excellent and exalted state of self-realisation, and the attachment to the notion of self-nature arising from discrimination. What is the excellent, exalted state of self-realisation belonging to the Śrāvakas? This is a state of mental concentration which is attained when one realises states of emptiness, egolessness, suffering, and impermanence, and the truth that is free from passions and is ever serene; when one annihilates notions belonging to the externality of things, such as the Skandhas, Dhātus [Elements], Āyatanas [Six senses or modes of perception and the six kinds of object they correspond to], individuality and generality; and when one has an insight into reality as it is. Entering upon this state of mental concentration the Śrāvakas will attain the blissful abode of exalted self-realisation in which there is the emancipation belonging to a Dhyāna, the path and fruit of a Samādhi, and the deliverance of a Samāpatti [where the body and mind abide in a state of tranquil composure], but in which there is as yet no discarding of habit-energy and no escape from the imperceivable transformation of death. This, Mahāmati, is the Śrāvaka's exalted state of self-realisation. Having attained this exalted and blissful condition of self-realisation as realised by the Śrāvakas, Mahāmati, the Bodhisattva-Mahāsattva may not enjoy by himself the bliss of cessation, the bliss of Samāpatti, but should think compassionately of other beings and keep ever fresh his original vows. Mahāmati, in whatever exalted and blissful state of self-realisation the Bodhisattva may find himself, he should never exert himself in the exalted and blissful state of self-realisation as attained by the Śrāvakas.

(59) Mahāmati, what is meant by the attachment to the notion of self-nature arising from discrimination? This attachment takes place when a man, seeing that the elements and the qualities such as blue, yellow, warmth, humidity, motility, and rigidity, have never been created by a creator, yet clings to the notions of individuality and generality in accordance with the measures laid down in books of logic. Mahāmati, the Bodhisattva, knowing what this is, must abandon it. Conforming himself to the egolessness of things and holding back the wrong views regarding the egolessness of a person, the Bodhisattva should keep himself on the continuously-ascending journey along the stages. This is the Śrāvaka's attachment to the notion of self-nature arising from the discrimination of existence.

Well there may be a "Cool State^TM," but if one cultivates that state one is not helping other beings.