Sadhu and Samdhi

Relationships are established and maintained by constant and continuous association. There may be others but I feel that Sadhu and Samdhi are no relationships. SADHU: sisters are married and they are related to each other from childhood and by virtue of that relationships their husbands become relatives to each other.( kind of compulsive relationship; neither established nor maintained ) !!! Relationship is known as sadhu : not a well defined and established relationship - a very casual relationship with almost no contact or association-- very very formal relationship.For the younger sister, the husband of the elder sister is known as Jijaiji, seems to be some what established relationship but how the husband of the younger sister is related and known to the elder sister ( no established relationship is known )? very very formal, fragile and delicate relationship. SAMDHI: Similarly, Samdhi is no relationship; fathers of groom and bridegroom ( two strange persons likely to join in very close conjugal relationship for the rest of the life ) are known as samdhi almost non-existent relationship. A relationship merely for a formality sake. They were not known before the marriage of their children and never meet after the marriage in future except only on a very few formal occasions. For any kind of relationship, association is the most important thing and association can be established among the persons even without a formal relationship (most of the friends are in this category) . Once the association is established, relationship is automatically established.