Those who raises their energy to their head, sahasrara chakra, is called yogi.
Yoga Sutras ~ Patanjali:
Verse 2.37
अस्तेयप्रतिष्ठायां सर्वरत्नोपस्थानम् ॥३७॥
asteya-pratiṣṭhāyāṁ sarvaratn-opasthānam ॥37॥
On being firmly established in non-stealing all wealth comes to the Yogi.
Verse 2.38
ब्रह्मचर्य प्रतिष्ठायां वीर्यलाभः ॥३८॥
brahma-carya pratiṣṭhāyāṁ vīrya-lābhaḥ ॥38॥
When the sadhaka is firmly established in continence, knowledge, vigour, valour and energy flow to him.
Upon the man who does not take what does not belong to him, all riches
are showered. Being without desire, he effortlessly attracts what is precious,
materially and figuratively, including the gem of all jewels, virtue.
The celibate transforms the energy of procreation into spiritual energy (ojas) ,
creating lustre.
Sexual energy is the most basic expression of the life force. It is immensely powerful, and it is essential to control and channel it. In no way should we despise it.
The life-force which finds sexual expression also serves to find the warmth of our emotions, the passions of our intellect, and our idealism. As our physical essence is semen, so our spiritual essence is the soul.
Their relationship should be based on co-operation. It is the creative relationship of purusha and prakrti which leads to freedom.
We must learn to control the life-force because it provides the energy which carries us to goals, aka self realisation other than procreation.
Lack of control can lead to despair, dejection and depression. But if energy is abundant and controlled we have hope and confidence, and our mind turns automatically to higher thoughts.
Those who wastes his energy, by releasing their semen is called bhogi
Those who raises their energy to their head, sahasrara chakra, is called yogi.
PATANJALI YOGA SUTRAS