With such a marvelous survival package, this seed, or sea heart ​ — as it is sometimes called on account of its unusual heart shape — ​ can travel unharmed in the sea for months, even years, before being cast onto a distant beach.
Tänu niisugusele ellujäämiseks vajalikule imelisele pakendile võib see südamekujuline seeme kuid, isegi aastaid vigastamatuna merel seilata, enne kui see mõnda randa maabub.