Hatha yoga made out of two Sanskrit words "prāṇa" (प्राण, breath, vital energy, life force) and "āyāma" (आयाम, restraining, extending, stretching). Some Hatha yoga texts teach breath exercises but do not refer to it as Pranayama. For example, "Gheranda samhita" in section 3.55 calls it "Ghatavastha" (state of being the pot). In others, the term "Kumbhaka" or "Prana-samrodha" replaces Pranayama. Regardless of the nomenclature, proper breathing and the use of breathing techniques during a posture is a mainstay of Hatha yoga. Its texts state that proper breathing exercises cleanses and balances the body. "Pranayama" is one of the core practices of Hatha
Aranyaka however, neither are homogeneous in content nor in structure. "Aranyakas" are sometimes identified as "karma-kanda" (कर्मकाण्ड) / (कांड), ritualistic action/sacrifice section), while the Upanishads are identified as "jnana-kanda" (ज्ञानकाण्ड /कांड) knowledge/spirituality section). In an alternate classification, the early part of Vedas are called Samhitas and the ritualistic commentary on the mantras and rituals are called the Brahmanas which together are identified as the ceremonial "karma-kanda", while "Aranyakas" and "Upanishads" are referred to as the "jnana-kanda". In the immense volume of ancient Indian Vedic literature, there is no absolute universally true distinction between "Aranyakas" and "Brahmanas". Similarly, there is no absolute