The word rune means mystery, whisper or secret.  They are used as a divination practice and for spiritual guidance.   They help you to gain insight into situations or questions and to get clarification about the past, present and future. They feature symbols from the Elder Futhark (what would later be called the Vikings) alphabet
 
Shiva Lingam represents the unity of creation.  For this reason it is often used to help with fertility, a perfect fusion of of the male and female Shiv Shakti energies.   It is a powerful stone aligned to all the chakras, zodiac signs, elements and numbers.  It's great for exploring divine energy and sacred masculine energies.  It helps to bring you into full balance and empowerment, connecting you with the divine both with-out you and within you
 
Chakra: All