Some themes of paramount importance in NEXUS are compassion, love, and heart centered living, so I thought it would be relevant to expand on some ideas about the heart chakra (a metaphysical, energetic centre located near the heart).
The Heart Chakra is associated with the colour green and/or pink. This love centre of our human energy system is often the focus in bringing about a healing in an individual.

Thus the words “love heals all” have great truth.
Hurtful situations that can affect our emotional well-being are divorce or separation, grief through death, emotional abuse, abandonment, and adultery etc. These are wounding to the heart chakra.
Physical illness brought about by heart-break require that an emotional healing occur along with the physical healing. Learning to love yourself is a powerful first step in securing a healthy fourth chakra. The “wounded child” resides in the heart chakra.
HEART CHAKRA
Colour: green, pink
Physical Location: centre of the chest
Spiritual Lesson: forgiveness, unconditional love, letting go, trust, compassion
Physical Dysfunctions: heart conditions, asthma, lung and breast cancer, thoracic and spinal problems, pneumonia, upper back/shoulder problems
Mental and Emotional Issues: love, compassion, confidence, inspiration, hope, despair, hate, envy, fear, jealousy, anger, generosity
Information stored in Heart Chakra: connections or “heart-strings” to those whom we love
Area of Body Governed: heart, circulatory system, blood, lungs, rib cage, diaphragm, thymus, breasts, esophagus, shoulders, arms, hands
Gemstones and Flower Essences: gemstones and flower essences that stimulate, cleanse, energize the heart chakra are:
Gemstones: Malachite, Emerald, Rose Quartz
Flower Essences: Holly, Poppy, California Wild Rose