頤卦 (Nourishment Gua) has an upper Gen (艮) Trigram and a an lower Zhen (震) Trigram. The upper and lower Yang Yao (阳爻) give the appearance of mouth while the four Yin Yao (阴爻) in between are the opening of that mouth, waiting to be fed. The Yi Gua (頤) is therefore referred to as ‘Nourishment’.
頤卦 (Nourishment Gua) emphasizes the need to care for others and the environment in order to be able to nurture the growth both in body and in spirit (incl. soul). And also the appropriate use of energy and resources (not to waste it) and to always seek balance in our approach to living. In modern terms, substainability.
頤卦 (Nourishment Gua) elements (五行) belongs to Water (水)；if the facing / sitting / door of the house or apartment is this Gua (卦), it is suitable for resident with annual pillar Wood Rat (甲子), Fire Goat (丁未), Earth Goat (己未).