A short introduction to Swara yoga

Ida nadi	Pingala nadi
Left nostril (and the whole left side of the body)	Right nostril (and the whole right side of the body)
Moon	Sun
Feminine	Masculine
Yin	Yang
Right brain	Left brain
Intuitive	Logical
Subjective	Objective
Colors	Words
Parasympathetic nervous system	Sympathetic nervous system
Mental energy	Physical energy
Attention	Intention
Flexibility	Strength
Cooperation	Competition
Collective	Individual
Introvert	Extrovert
Samatha	Vipasana
Prey	Predator
Cold	Hot
Negative	Positive
Desire	Action

Nadi Shodana is the practice of choice for balancing the swaras.

Further reading:

Breath, Mind and Consciousness by Harish Johari
Swara Yoga: The Tantric Science of Brain Breathing
by Swami Muktibodhananda, Bihar School of Yoga